//: arrays/CompType.java
// Implementing Comparable in a class.
package arrays;

import java.util.*;

import net.mindview.util.*;

import static net.mindview.util.Print.*;

public class CompType implements Comparable<CompType>
{
    int i;
    
    int j;
    
    private static int count = 1;
    
    public CompType(int n1, int n2)
    {
        i = n1;
        j = n2;
    }
    
    public String toString()
    {
        String result = "[i = " + i + ", j = " + j + "]";
        if (count++ % 3 == 0)
            result += "\n";
        return result;
    }
    
    public int compareTo(CompType rv)
    {
        return (i < rv.i ? -1 : (i == rv.i ? 0 : 1));
    }
    
    private static Random r = new Random(47);
    
    public static Generator<CompType> generator()
    {
        return new Generator<CompType>()
        {
            public CompType next()
            {
                return new CompType(r.nextInt(100), r.nextInt(100));
            }
        };
    }
    
    public static void main(String[] args)
    {
        CompType[] a = Generated.array(new CompType[12], generator());
        print("before sorting:");
        print(Arrays.toString(a));
        Arrays.sort(a);
        print("after sorting:");
        print(Arrays.toString(a));
    }
} /*
   * Output: before sorting: [[i = 58, j = 55], [i = 93, j = 61], [i = 61, j = 29] , [i = 68, j = 0], [i = 22, j = 7],
   * [i = 88, j = 28] , [i = 51, j = 89], [i = 9, j = 78], [i = 98, j = 61] , [i = 20, j = 58], [i = 16, j = 40], [i =
   * 11, j = 22] ] after sorting: [[i = 9, j = 78], [i = 11, j = 22], [i = 16, j = 40] , [i = 20, j = 58], [i = 22, j =
   * 7], [i = 51, j = 89] , [i = 58, j = 55], [i = 61, j = 29], [i = 68, j = 0] , [i = 88, j = 28], [i = 93, j = 61], [i
   * = 98, j = 61] ]
   */// :~
